Add never-deploy-snapshots option.
Add :only-deploy-master option to prevent deploys from non-master branches.
Add an :only-install-snapshots option that prevents `lein install` of non-snapshots.
Rethink :only-deploy-master and generalize it for a set of branches.
Add a simple alias mechanism for :repositories and :deploy-repositories.
Rewrite only-install-snapshots as install-releases?
Make sure metadata is propagated.
Merge branch 'master' of github.com:technomancy/leiningen